Nacogdoches, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.5 °C (low) to 25.5 °C (high). Annual precipitation averages 1310.1 Millimeters. Nacogdoches is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.2 °C | 15.2 °C | 120.14 mm |
| February | 4.2 °C | 17.5 °C | 106.68 mm |
| March | 7.8 °C | 21.3 °C | 116.59 mm |
| April | 11.8 °C | 25.3 °C | 109.98 mm |
| May | 17.2 °C | 29.3 °C | 117.6 mm |
| June | 20.9 °C | 32.7 °C | 122.43 mm |
| July | 22.4 °C | 34.4 °C | 76.96 mm |
| August | 22 °C | 35.2 °C | 81.28 mm |
| September | 18.6 °C | 31.9 °C | 101.09 mm |
| October | 12.3 °C | 26.8 °C | 115.32 mm |
| November | 6.8 °C | 20.6 °C | 113.28 mm |
| December | 3.3 °C | 16.1 °C | 128.78 mm |
| Annual | 12.5 °C | 25.5 °C | 1310.13 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |